3 results about "Vanadium redox battery" patented technology

The utility model discloses a kind of all-vanadium redox battery systems, including capacity tank and power box, further including transport and distribution tank, capacity tank is provided with first battery management unit, transport and distribution tank is provided with second battery management unit, the outer wall of power box is provided with BMS special cabin and confluence control cabinet, BMS special cabin is provided with BMS main controller, BMS main controller is connected with first battery management unit, second battery management unit and confluence control cabinet respectively. By separately setting BMS special cabin and confluence control cabinet outside power box, it is greatly convenient for the operation and maintenance management work of later period, frequent access to power box when operation and maintenance can be avoided. And by setting transport and distribution tank, most of electrolyte supply line structure and heat exchanger and cooling liquid circulation pipeline are separated from power box, reduce the occupation to power box internal installation space and simplify power box internal structure composition, it is convenient for operation and maintenance management, and using above structure also facilitate the modularization construction of liquid flow battery system, it is convenient for quick expansion.

The application relates to a kind of marine all-vanadium redox battery system mounting devices, and the marine all-vanadium redox battery system mounting device includes: mounting frame, electrolyte storage tank and hydraulic cylinder;Mounting frame includes the mounting bottom plate arranged on the ship, and the hemispherical groove is arranged on the mounting bottom plate;The first end of electrolyte storage tank is arranged in the hemispherical groove, and the first end of electrolyte storage tank is matched with the shape of hemispherical groove, and electrolyte storage tank can swing in the hemispherical groove;The outer wall of electrolyte storage tank is also fixedly provided with adjusting plate, and the adjusting plate is arranged close to the first end of electrolyte storage tank;Hydraulic cylinder is arranged on the mounting bottom plate, and hydraulic cylinder is located between mounting bottom plate and adjusting plate, and hydraulic cylinder is used to adjust the attitude of electrolyte storage tank.The application utilizes the expansion and contraction of piston rod in hydraulic cylinder to drive electrolyte storage tank to swing, when the ship is tilted on the mounting bottom plate due to wind and wave during sailing, the piston rod in the hydraulic cylinder on the tilted side is extended, and the angle of electrolyte storage tank is actively adjusted.

The application relates to the field of batteries. The application provides a method for adjusting the comprehensive valence state of electrolyte of a full vanadium redox flow battery. The method comprises circulating the positive and negative electrolyte without passing through an electric pile until the concentrations of the positive and negative electrolyte are uniform; calculating the volume Vp of the positive electrolyte and the volume Vn of the negative electrolyte, determining that Vp / Vn is k, and k is a positive rational number; mixing a positive electrolyte sample drawn from a positive electrolyte storage tank and a negative electrolyte sample drawn from a negative electrolyte storage tank according to a volume ratio of k:1 to obtain a mixed electrolyte sample; measuring the concentration of protons in the mixed electrolyte sample; measuring the open-circuit voltage of a test single cell; calculating the comprehensive valence state of the mixed electrolyte sample; and adding a reducing agent or an oxidizing agent to adjust the comprehensive valence state of the mixed electrolyte sample if the comprehensive valence state of the mixed electrolyte sample is greater than or less than 3.5. The method can quickly sample and analyze the deviation of the valence state of the electrolyte and quickly adjust the valence state.